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Finding the Third Proportional to 77,712.75 and 116,856.75

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Solution

The third proportional to 77,712.75 and 116,856.75 is: 175,717.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,712.75 : 116,856.75 = 116,856.75 : x
  2. Step 2: Convert to fraction form
    77,712.75/116,856.75 = 116,856.75/x
  3. Step 3: Cross multiply
    77,712.75x = 116,856.75 × 116,856.75
  4. Step 4: Simplify right side
    77,712.75x = 13,655,500,020.56
  5. Step 5: Solve for x
    x = 13,655,500,020.56/77,712.75
  6. Step 6: Final answer
    x = 175,717.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.